The special containers are simply clear polycarbonate empty cartridge filled with one or more specific media, such as granular carbon , polyphosphate crystals, the mixed bed resin ... exist in standard format. AFIMO added their output a sufficiently thick foam to avoid releasing media.
|Standard media :||Granular Carbon / Polyphosphate crytals / granular calcite|
|Lenght:||9’’3/4 in standard. 20'' is 2 module of 9''3/4|